mirror of
https://github.com/xcat2/xNBA.git
synced 2024-12-14 07:11:32 +00:00
Make PKB_ZLEN the minimum possible size of packet buffer (to allow for
hardware that can't autopad).
This commit is contained in:
parent
1dbafa8950
commit
6c50564724
@ -28,6 +28,15 @@ struct ll_protocol;
|
||||
*/
|
||||
#define PKBUFF_ALIGN 2048
|
||||
|
||||
/**
|
||||
* Minimum packet buffer length
|
||||
*
|
||||
* alloc_pkb() will round up the allocated length to this size if
|
||||
* necessary. This is used on behalf of hardware that is not capable
|
||||
* of auto-padding.
|
||||
*/
|
||||
#define PKB_ZLEN 64
|
||||
|
||||
/** A packet buffer
|
||||
*
|
||||
* This structure is used to represent a network packet within gPXE.
|
||||
|
@ -39,6 +39,10 @@ struct pk_buff * alloc_pkb ( size_t len ) {
|
||||
struct pk_buff *pkb = NULL;
|
||||
void *data;
|
||||
|
||||
/* Pad to minimum length */
|
||||
if ( len < PKB_ZLEN )
|
||||
len = PKB_ZLEN;
|
||||
|
||||
/* Align buffer length */
|
||||
len = ( len + __alignof__( *pkb ) - 1 ) & ~( __alignof__( *pkb ) - 1 );
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user